Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1991AEROSTAR VAN CARGO EXTENDED, 4.0 X, AWDREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSOVERHAUL - A4LDCOMPONENT DISASSEMBLY & REASSEMBLYCONTROL VALVE BODYDISASSEMBLY
1991 Ford Aerostar Van Cargo Extended, 4.0 X, AWD
Control Valve Body: Disassembly
1991 Ford Aerostar Van Cargo Extended, 4.0 X, AWDSECTION Disassembly
- Remove 3 Torx bolts and remove separator plate and gasket. Note location and remove check ball, shuttle balls, check valves and relief valves with springs. See Figure.
- Ensure small filter remains with separator plate when plate is removed from valve body. Filter is located in corner of separator plate near converter clutch solenoid connector. Remove retaining plates, dowels, plugs and valves with springs from valve body. See Figure. See related components under CLEANING & INSPECTION .
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.